Elevator control cabinet

Abstract

The invention provides an elevator control cabinet. The elevator control cabinet comprises a power supply wiring terminal; the capacitor assembly is arranged on one side of the power supply wiring terminal along the first direction; the rectifier and the inverter are arranged on one side of the capacitor assembly along a second direction, and the first direction is perpendicular to the second direction; the power supply wiring terminal is connected with the input end of the rectifier through the input copper bar group, the power supply wiring terminal is connected with the output end of the inverter through the output copper bar group, and the power supply wiring terminal is connected with the output end of the rectifier through the output copper bar group. The capacitor assembly is connected with the output end of the rectifier and the input end of the inverter through the connecting copper bar group. Under the condition that the high-power requirement of the elevator control cabinet is met, the size of the elevator control cabinet is reduced, and the miniaturization requirement of the elevator control cabinet is met.

Description

Technical Field

[0001] The present application relates to the technical field of elevator equipment, and in particular to an elevator control cabinet. Background Art

[0002] Elevators have become increasingly popular in every corner of the city, especially in high-rise buildings, where elevators are an indispensable part. In order to ensure the normal operation of the elevator, the elevator is generally equipped with an elevator control system, which is set in a control cabinet.

[0003] In the related art, in order to ensure the electrical insulation performance and electrical connection safety of a high-power elevator control cabinet, the various components inside it are arranged independently and electrically connected through wires or cables, which causes these components to occupy too much internal space, making the volume of the elevator control cabinet larger. Summary of the invention

[0004] The embodiment of the present application provides an elevator control cabinet, which is beneficial to improving the problem of the large size of the elevator control cabinet.

[0005] The elevator control cabinet includes: a power terminal; a capacitor assembly, which is arranged on one side of the power terminal along a first direction; a rectifier and an inverter, which are arranged on one side of the capacitor assembly along a second direction, and the first direction is perpendicular to the second direction; and an input copper bar group, an output copper bar group and a connecting copper bar group, wherein the power terminal is connected to the input end of the rectifier through the input copper bar group, the power terminal is connected to the output end of the inverter through the output copper bar group, and the capacitor assembly is connected to both the output end of the rectifier and the input end of the inverter through the connecting copper bar group.

[0006] In some embodiments, an orthographic projection of the power terminal in the first direction is located within an orthographic projection of the capacitor component in the first direction.

[0007] In some embodiments, the input copper busbar group includes multiple input copper busbars, and the output copper busbar group includes multiple output copper busbars. Parts of the multiple input copper busbars are located on a first plane, and parts of the multiple output copper busbars are located on a second plane. The first plane and the second plane are parallel and perpendicular to the first direction.

[0008] In some embodiments, the distance between the first plane and the second plane is greater than or equal to 15 mm and less than or equal to 30 mm.

[0009] In some embodiments, the capacitor assembly includes a laminated busbar and a plurality of electrolytic capacitors connected to the laminated busbar, wherein the laminated busbar is located between the electrolytic capacitor and the power terminal;

[0010] The connecting copper bar group includes a first copper bar group and a second copper bar group. The laminated busbar is connected to the input end of the inverter through the first copper bar group, and the laminated busbar is connected to the output end of the rectifier through the second copper bar group.

[0011] In some embodiments, along the second direction, the inverter is located between the rectifier and the laminated busbar, the input end of the inverter is arranged close to the laminated busbar, and the first copper busbar group and the laminated busbar are an integrally formed structure.

[0012] In some embodiments, the laminated busbar has a first capacitor positive electrode port and a capacitor negative electrode port, the first capacitor positive electrode port and the capacitor negative electrode port are located on opposite sides of the laminated busbar along a third direction, and the third direction is perpendicular to the first direction and the second direction respectively;

[0013] The second copper bar group includes a first copper bar and a second copper bar. The positive electrode port of the first capacitor is connected to the positive output terminal of the rectifier through the first copper bar, and the negative electrode port of the capacitor is connected to the negative output terminal of the rectifier through the second copper bar.

[0014] In some embodiments, the elevator control cabinet further comprises a pre-charging component and a reactor arranged along the second direction on a side of the rectifier and the inverter away from the power connection terminal;

[0015] The first copper bar includes a first sub-copper bar, a second sub-copper bar and a third sub-copper bar. The first sub-copper bar is connected between the positive output end of the rectifier and the pre-charging component, the second sub-copper bar is connected between the pre-charging component and the reactor, and the third sub-copper bar is connected between the reactor and the positive port of the first capacitor.

[0016] In some embodiments, the power connection terminal includes a first DC connection port and a second DC connection port, and the laminated busbar also has a second capacitor positive electrode port;

[0017] The connecting copper bar group also includes a third copper bar and a fourth copper bar, one end of the third copper bar is connected to the first DC wiring port, and the other end is connected to the positive electrode port of the second capacitor, and one end of the fourth copper bar is connected to the second DC wiring port, and the other end is connected to the second copper bar.

[0018] In some embodiments, the elevator control cabinet also includes a second bracket and a radiator connected to the second bracket, the second bracket is provided with a first through hole and a second through hole, the radiator is arranged opposite to the first through hole, the rectifier and the inverter are connected to the radiator through the first through hole, the capacitor assembly is passed through the second through hole, and the power terminal is located on the side of the second bracket away from the radiator.

[0019] In some embodiments, the elevator control cabinet further includes a shell, a receiving cavity is formed inside the shell, the second bracket is located in the receiving cavity, and the capacitor assembly and the power terminal are connected to the shell.

[0020] In some embodiments, the elevator control cabinet also includes: a first bracket, arranged in the accommodating cavity and located on the side of the power terminal away from the second bracket; a drive substrate, fixedly connected to the side of the first bracket away from the second bracket, the inverter is connected to the drive substrate through a conductive wiring harness; and a control module and a power module, both electrically connected to the drive substrate, the control module includes a control board, the power module includes a power board, the control board and the power board are both fixedly connected to the first bracket, and the control board, the power board, and the drive substrate are located on the same side of the first bracket.

[0021] The elevator control cabinet of the present application uses a variety of copper bar structures to realize the mechanical connection and electrical connection between capacitor components, rectifiers, inverters, and power terminals. The copper bar has high conductivity and excellent heat dissipation performance, which can ensure the safety of the electrical connection between the above-mentioned components, so that the above-mentioned structure can be applied to elevator control cabinets with power of 75kw and above 75kw, thereby meeting the high-power demand of the elevator control cabinet. Further, the capacitor component is located on one side of the power terminal in the first direction, and the rectifier and inverter are located on one side of the capacitor component in the second direction, so that the rectifier, inverter, and capacitor component can make full use of the space inside the elevator control cabinet in two directions, thereby being able to improve the integration degree of the above-mentioned components. At the same time, the copper bar also has the advantages of high mechanical strength and small footprint, and can meet the reliability of the mechanical connection of the above-mentioned components in the case of high integration. Thus, it is beneficial to reduce the volume of the elevator control cabinet and realize the miniaturization demand of the elevator control cabinet while meeting the high-power demand of the elevator control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of an elevator control cabinet provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the exploded structure of an elevator control cabinet provided in one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a power terminal block, a rectifier, an inverter, and a capacitor assembly provided in an embodiment of the present application after being connected at a certain viewing angle;

[0026] Figure 4 A schematic diagram of the structure of a power terminal block, a rectifier, an inverter, and a capacitor assembly provided in an embodiment of the present application after being connected from another perspective;

[0027] Figure 5 A schematic diagram of a structure of a capacitor assembly and an inverter connected according to an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of a capacitor assembly provided in one embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of the second bracket, the heat sink, the power terminal, the rectifier, the inverter, and the capacitor assembly provided in one embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of a second bracket provided in one embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the structure of the connection between the first bracket, the driving substrate, the power board, and the control board provided in one embodiment of the present application.

[0032] Description of reference numerals:

[0033] 10- Elevator control cabinet;

[0034] 100 - housing, 101 - accommodating chamber, 110 - first side plate, 120 - third side plate, 130 - second side plate, 160 - fourth side plate, 161 - operation window;

[0035] 200-first bracket;

[0036] 310-drive substrate, 321-rectifier, 3211-rectifier bridge module, 322-inverter, 3221-IGBT module, 323-power terminal, 3231-first DC output terminal, 3232-second DC output terminal, 325-contactor, 326-pre-charge resistor, 328-lightning protection board, 329-current sensor, 330-capacitor assembly, 331-laminated busbar, 3311-first capacitor positive terminal, 3312-capacitor negative terminal, 331 3-second capacitor positive terminal, 332-electrolytic capacitor, 340-reactor, 350-input copper bar group, 351-input copper bar, 360-output copper bar group, 361-output copper bar, 370-connecting copper bar group, 371-first copper bar group, 372-second copper bar group, 3721-first copper bar, 3722-second copper bar, 3721a-first sub-copper bar, 3721b-second sub-copper bar, 3721c-third sub-copper bar, 373-third copper bar, 374-fourth copper bar;

[0037] 400-power module, 410-power board;

[0038] 500-control module, 510-control board;

[0039] 610 - second bracket, 611 - first through hole, 612 - second through hole, 620 - heat sink;

[0040] 700-Human-computer interaction module. DETAILED DESCRIPTION

[0041] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0042] The present application embodiment provides an elevator control cabinet 10. Figures 1 to 4 As shown, the elevator control cabinet 10 includes a power terminal 323, a capacitor assembly 330, a rectifier 321, an inverter 322, an input copper bar group 350, an output copper bar group 360, and a connecting copper bar group 370. The capacitor assembly 330 is arranged on one side of the power terminal 323 along the first direction X, and the rectifier 321 and the inverter 322 are arranged on one side of the capacitor assembly 330 along the second direction Z. The first direction X is perpendicular to the second direction Z. Among them, the power terminal 323 is connected to the input end of the rectifier 321 through the input copper bar group 350, the power terminal 323 is connected to the output end of the inverter 322 through the output copper bar group 360, and the capacitor assembly 330 is connected to both the output end of the rectifier 321 and the input end of the inverter 322 through the connecting copper bar group 370.

[0043] In the present application, the elevator control cabinet 10 includes a power supply terminal 323, a capacitor assembly 330, a rectifier 321, an inverter 322, an input copper bar group 350, an output copper bar group 360, and a connecting copper bar group 370. The power supply terminal 323 is used to access external alternating current, and is also used to output rectified and inverted alternating current. The rectifier 321 is used to convert the input alternating current into direct current, and the capacitor assembly 330 is used as a filter element to smooth the direct current voltage, thereby improving the stability of the direct current output by the rectifier 321. The inverter 322 is used to convert the rectified direct current back to an alternating current with adjustable frequency and voltage to meet the speed regulation requirements of the elevator motor.

[0044] The capacitor assembly 330 is arranged on one side of the power terminal 323 along the first direction X, and the rectifier 321 and the inverter 322 are arranged on one side of the capacitor assembly 330 along the second direction Z. The first direction X may be the width direction of the elevator control cabinet 10, and the second direction Z may be the height direction of the elevator control cabinet 10. In this way, the internal space of the elevator control cabinet 10 can be reasonably utilized while ensuring the connection convenience of the capacitor assembly 330, the power terminal 323, the rectifier 321, and the inverter 322.

[0045] The input copper bar group 350, the output copper bar group 360 and the connecting copper bar group 370 are used to realize the connection between the above-mentioned components. Specifically, the power terminal 323 realizes the electrical and mechanical connection with the rectifier 321 and the inverter 322 through the input copper bar group 350 and the output copper bar group 360; the capacitor assembly 330 realizes the electrical and mechanical connection with the rectifier 321 and the inverter 322 through the connecting copper bar group 370. As a result, the power terminal 323, the capacitor assembly 330, the rectifier 321 and the inverter 322 are integrated into an integrated structure.

[0046] The elevator control cabinet 10 of the present application uses a variety of copper bar structures to realize the mechanical connection and electrical connection between the capacitor assembly 330, the rectifier 321, the inverter 322, and the power terminal 323. The copper bar has high conductivity and excellent heat dissipation performance, which can ensure the safety of the electrical connection between the above components, so that the above structure can be applied to the elevator control cabinet 10 with a power of 75kw and above 75kw, thereby meeting the high power demand of the elevator control cabinet 10. Further, the capacitor assembly 330 is located on one side of the power terminal 323 in the first direction X, and the rectifier 321 and the inverter 322 are located on one side of the capacitor assembly 330 in the second direction Z, so that the rectifier 321, the inverter 322, and the capacitor assembly 330 can make full use of the space in the two directions of the interior of the elevator control cabinet 10, thereby improving the integration degree of the above components. At the same time, the copper bar also has the advantages of high mechanical strength and small footprint, which can meet the reliability of the mechanical connection of the above components in the case of high integration. This is beneficial for reducing the volume of the elevator control cabinet 10 while meeting the high power demand of the elevator control cabinet 10 , thereby realizing the miniaturization demand of the elevator control cabinet 10 .

[0047] In some embodiments, Figure 3 and Figure 4 As shown, the orthographic projection of the power terminal 323 in the first direction X is located within the orthographic projection of the capacitor assembly 330 in the first direction X. In this way, the power terminal 323 and the capacitor assembly 330 can be arranged more closely in the first direction X, while avoiding the power terminal 323 or the capacitor assembly 330 from occupying additional space in the second direction Z, thereby facilitating further improving the integration level of the elevator control cabinet 10, and further facilitating the miniaturization requirement of the elevator control cabinet 10. In addition, it is also conducive to improving the convenience of connection between the power terminal 323 and the capacitor assembly 330, and between the power terminal 323 and the rectifier 321 and the inverter 322.

[0048] In some embodiments, Figure 3 and Figure 4 As shown, the input copper bar group 350 includes multiple input copper bars 351, and the output copper bar group 360 includes multiple output copper bars 361. Parts of the multiple input copper bars 351 are located on the first plane S1, and parts of the multiple output copper bars 361 are located on the second plane S2. The first plane S1 and the second plane S2 are parallel and perpendicular to the first direction X.

[0049] In this embodiment, the input copper bar group 350 includes a plurality of input copper bars 351, and the output copper bar group 360 includes a plurality of output copper bars 361. Figure 3As shown, the power connection terminal 323 includes three AC input terminals (not shown in the figure) and four AC output terminals (not shown in the figure), one of the four AC output terminals is used to connect the brake resistor, and the other three are used to connect the motor. Then the input copper bar group 350 includes three input copper bars 351 connected to the three AC input terminals respectively, and the output copper bar group 360 includes four output copper bars 361 connected to the four AC output terminals respectively. Optionally, the number of input copper bars 351 and output copper bars 361 can also be flexibly changed according to actual needs, and this application does not limit this.

[0050] Furthermore, a portion of the multiple input copper bars 351 is located on the first plane S1, and a portion of the multiple output copper bars 361 is located on the second plane S2, and a layered design is presented between the two. With such a configuration, on the one hand, since the two ends of the input copper bar 351 are respectively connected to the rectifier 321 and the power terminal 323, and the two ends of the output copper bar 361 are respectively connected to the inverter 322 and the power terminal 323, the two are configured as a layered structure, so that the arrangement of the copper bars is regular, thereby improving the aesthetic performance and space utilization of the copper bar arrangement, thereby achieving high integration, and improving the convenience of connecting the copper bar with the rectifier 321 and the inverter 322, and also facilitating personnel to maintain or replace the copper bar. On the other hand, the layered design of the copper bar can reduce the probability of interference between the copper bars on different planes. In other words, the number of input copper bars 351 and output copper bars 361 can be flexibly designed according to actual needs, such as input terminal conditions, output terminal conditions, specifications of rectifier 321 and inverter 322, etc., without worrying about interference problems, thereby improving the scalability and flexibility of the copper bar structure. Thirdly, the multiple input copper bars 351 and the multiple output copper bars 361 are layered, so that the input copper bar group 350 and the output copper bar group 360 can maintain a certain creepage distance, thereby achieving electrical isolation, reducing electrical interference and safety hazards, and at the same time avoiding heat concentration, increasing the heat dissipation effect of the copper bar, thereby reducing the probability of copper bar overheating, which is conducive to further improving the safety and reliability of the copper bar structure connection.

[0051] In some embodiments, the distance between the first plane S1 and the second plane S2 is greater than or equal to 15 mm and less than or equal to 30 mm. In this embodiment, the distance between the first plane S1 and the second plane S2 is limited to between 15 mm and 30 mm, so that the interval between the layers of the input copper bar group 350 and the output copper bar group 360 will not be too large, so that the space occupied by the input copper bar group 350 and the output copper bar group 360 can be further reduced while ensuring reliable electrical isolation between the two, which is conducive to further improving the integration of the input copper bar group 350 and the output copper bar group 360 with other components, and realizing the miniaturization requirement of the elevator control cabinet 10.

[0052] In some embodiments, Figures 2 to 4 As shown, the first plane S1 is located on the side of the second plane S2 away from the capacitor assembly 330. The elevator control cabinet 10 also includes a lightning protection board 328 and a plurality of current sensors 329. The lightning protection board 328 is fixedly connected to the input copper busbar group 350. Each current sensor 329 is correspondingly connected to each output copper busbar 361 of the output copper busbar group 360.

[0053] The lightning protection board 328 is used to prevent each electrical component from being damaged by surge voltage, thereby improving the safety and stability of the elevator control cabinet 10. Figure 2 and Figure 3 , the lightning protection board 328 can be directly connected to the input copper bar 351 of the input copper bar group 350 by welding. The current sensor 329 is used to monitor the output current, so as to realize the functions of overload protection, fault alarm, etc. Since part of the input copper bar 351 is located in the first plane S1, and part of the output copper bar 361 is located in the second plane S2, the distance between the first plane S1 and the second plane S2 is limited, resulting in limited installation space between the two, and the volume of the lightning protection board 328 is much larger than the volume of the current sensor 329. Therefore, in this embodiment, the first plane S1 is arranged on the side of the second plane S2 away from the capacitor assembly 330, so that the corresponding input copper bar group 350 is located on the outside of the output copper bar group 360. In this way, space for installing the lightning protection board 328 can be reserved on the input copper bar group 350, and space for installing the current sensor 329 can be reserved on the output copper bar group 360, so as to improve the convenience of installing the lightning protection board 328 and the current sensor 329 on the one hand, and on the other hand, the space between different planes can be reasonably utilized to further improve the degree of integration.

[0054] In some embodiments, Figures 3 to 6 As shown, the capacitor assembly 330 includes a laminated busbar 331 and a plurality of electrolytic capacitors 332 connected to the laminated busbar 331, the laminated busbar 331 is located between the electrolytic capacitor 332 and the power terminal 323, the connecting copper bar group 370 includes a first copper bar group 371 and a second copper bar group 372, the laminated busbar 331 is connected to the input end of the inverter 322 through the first copper bar group 371, and the laminated busbar 331 is connected to the output end of the rectifier 321 through the second copper bar group 372.

[0055] In this embodiment, the capacitor assembly 330 adopts a structure of a laminated busbar 331 and an electrolytic capacitor 332. The laminated busbar 331 is formed by laminating multiple layers of copper bars, and multiple layers of insulating paper are arranged between two adjacent copper bars. Compared with the structure of the capacitor plate in the related art, it breaks through the plate material limitation of the printed circuit board, can be applied to large current requirements, and the heat dissipation performance is greatly improved, and it can also improve the convenience of connecting the capacitor assembly 330 with other components.

[0056] The laminated busbar 331 is provided with connection points for connecting to the output end of the rectifier 321 and connection points for connecting to the input end of the inverter 322. Figure 5 and Figure 6 The laminated busbar 331 is connected to the input end of the inverter 322 through the first copper bar group 371, and the laminated busbar 331 is connected to the output end of the rectifier 321 through the second copper bar group 372. In this way, the electrical and mechanical connections between the laminated busbar 331 and the rectifier 321 and the inverter 322 are achieved.

[0057] It is easy to understand that the inverter 322 may include a plurality of IGBT modules 3221 (Insulated Gate Bipolar Transistor), each of which has a positive input terminal and a negative input terminal. Figure 5 As shown, the number of IGBT modules 3221 is four, and the inverter 322 has a total of four positive input terminals and four negative input terminals, and the first copper bar group 371 has both positive copper bars and negative copper bars.

[0058] Similarly, the rectifier 321 may include a plurality of rectifier bridge modules 3211, each of which has a positive output terminal and a negative output terminal. Figure 3 As shown, the number of rectifier bridge modules 3211 is three, so the rectifier 321 has three positive output terminals and three negative output terminals in total, and the second copper bar group 372 has both positive copper bars and negative copper bars.

[0059] In some embodiments, Figures 3 to 6As shown, along the second direction Z, the inverter 322 is located between the rectifier 321 and the laminated busbar 331, the input end of the inverter 322 is arranged close to the laminated busbar 331, and the first copper bar group 371 and the laminated busbar 331 are an integrally formed structure. Such a configuration, on the one hand, is conducive to improving the convenience of connecting the laminated busbar 331 with the inverter 322 and reducing the difficulty of assembly. On the other hand, it is also possible to reduce the connection points between the inverter 322 and the laminated busbar 331, reduce contact resistance and signal loss, and thus help improve the efficiency and stability of current transmission. In addition, the connection distance and space between the inverter 322 and the laminated busbar 331 can be significantly reduced, which is conducive to realizing the miniaturization design requirements of the elevator control cabinet 10.

[0060] In some embodiments, Figures 3 to 6 As shown, the laminated busbar 331 has a first capacitor positive electrode port 3311 and a capacitor negative electrode port 3312, the first capacitor positive electrode port 3311 and the capacitor negative electrode port 3312 are located on opposite sides of the laminated busbar 331 along the third direction Y, the third direction Y is perpendicular to the first direction X and the second direction Z respectively, the second copper bar group 372 includes a first copper bar 3721 and a second copper bar 3722, the first capacitor positive electrode port 3311 is connected to the positive output terminal of the rectifier 321 through the first copper bar 3721, and the capacitor negative electrode port 3312 is connected to the negative output terminal of the rectifier 321 through the second copper bar 3722.

[0061] In this embodiment, the laminated busbar 331 is provided with a first capacitor positive electrode port 3311 and a capacitor negative electrode port 3312 on both sides along the third direction Y. The third direction Y may be, for example, the length direction of the elevator control cabinet 10. By providing the first capacitor positive electrode port 3311 and the capacitor negative electrode port 3312 on both sides of the laminated busbar 331, the probability of interference between the first copper bar 3721 and the second copper bar 3722 and the input copper bar group 350 and the output copper bar group 360 can be reduced, thereby facilitating the connection between the laminated busbar 331 and the inverter 322.

[0062] It is easy to understand that the first capacitor positive electrode port 3311 is connected to the positive output terminal of the rectifier 321 through the first copper bar 3721, and the capacitor negative electrode port 3312 is connected to the negative output terminal of the rectifier 321 through the second copper bar 3722. Specifically, when the rectifier 321 includes multiple rectifier bridge modules 3211, the positive output terminals of the multiple rectifier bridge modules 3211 can be electrically connected together first, and then connected to the first capacitor positive electrode port 3311 through the first copper bar 3721; similarly, the negative output terminals of the multiple rectifier bridge modules 3211 can be electrically connected together first, and then connected to the capacitor negative electrode port 3312 through the second copper bar 3722.

[0063] In some embodiments, Figure 3 As shown, the elevator control cabinet 10 also includes a pre-charging component and an inductor 340 arranged along the second direction Z on the side of the rectifier 321 and the inverter 322 away from the power terminal 323, the first copper bar 3721 includes a first sub-copper bar 3721a, a second sub-copper bar 3721b and a third sub-copper bar 3721c, the first sub-copper bar 3721a is connected between the positive output end of the rectifier 321 and the pre-charging component, the second sub-copper bar 3721b is connected between the pre-charging component and the inductor 340, and the third sub-copper bar 3721c is connected between the inductor 340 and the positive electrode port 3311 of the first capacitor.

[0064] The pre-charging component can limit the charging current, reduce the damage of surge to electronic components, and thus improve the safety performance of electrical components. The pre-charging component includes a pre-charging resistor 326 and a contactor 325, and the pre-charging resistor 326 is connected in parallel to the input end of the contactor 325. The reactor 340 can filter, suppress harmonics, and improve the electromagnetic anti-interference ability of electrical components, thereby ensuring the quality of DC output electricity.

[0065] In this embodiment, the first copper bar 3721 includes a first sub-copper bar 3721a, a second sub-copper bar 3721b and a third sub-copper bar 3721c. Therefore, the current from the positive output end of the rectifier 321 first passes through the pre-charging component, namely the contactor 325 and the pre-charging resistor 326, then passes through the inductor 340, and finally enters the capacitor component 330, which is beneficial to improve the quality of direct current and the stability and reliability of electrical components while improving the degree of integration of electrical components, and thus helps to improve the service life of the elevator control cabinet 10.

[0066] In some embodiments, Figures 3 to 6 As shown, the power terminal 323 includes a first DC output terminal 3231 and a second DC output terminal 3232, the laminated busbar 331 also has a second capacitor positive electrode port 3313, and the connecting copper bar group 370 includes a third copper bar 373 and a fourth copper bar 374, one end of the third copper bar 373 is connected to the first DC output terminal 3231, and the other end is connected to the second capacitor positive electrode port 3313, one end of the fourth copper bar 374 is connected to the second DC output terminal 3232, and the other end is connected to the second copper bar 3722.

[0067] In this embodiment, the power terminal 323 is also provided with a first DC output terminal 3231 and a second DC output terminal 3232, and the first DC output terminal 3231 is connected to the second capacitor positive electrode port 3313 through the third copper bar 373, thereby, the first DC output terminal 3231 can receive the positive DC output of the rectifier 321. The second DC output terminal 3232 is connected to the second copper bar 3722 through the fourth copper bar 374, thereby, the second DC output terminal 3232 can receive the negative DC output of the rectifier 321. In this embodiment, the first DC output terminal 3231 and the second DC output terminal 3232 are reserved on the power terminal 323, so that an outsider can perform wiring detection through these two terminals. Thus, it is conducive to improving the convenience of maintenance of the elevator control cabinet 10.

[0068] In some embodiments, Figure 2 , Figure 7 , Figure 8 As shown, the elevator control cabinet 10 also includes a second bracket 610 and a radiator 620 connected to the second bracket 610, the second bracket 610 is provided with a first through hole 611 and a second through hole 612, the radiator 620 is arranged opposite to the first through hole 611, the rectifier 321 and the inverter 322 are connected to the radiator 620 through the first through hole 611, the capacitor assembly 330 is passed through the second through hole 612, and the power terminal 323 is located on the side of the second bracket 610 away from the radiator 620.

[0069] In this embodiment, the elevator control cabinet 10 also includes a second bracket 610 and a radiator 620. The radiator 620 is fixed on the second bracket 610, and the rectifier 321 and the inverter 322 are fixedly connected to the radiator 620 through the first through hole 611. In this way, on the one hand, the radiator 620 can be directly attached to the rectifier 321 and the inverter 322, which is conducive to improving the heat dissipation effect of the rectifier 321 and the inverter 322. On the other hand, the rectifier 321 and the inverter 322 can also be indirectly fixed on the second bracket 610 through the radiator 620, which is conducive to further improving the degree of integration inside the elevator control cabinet 10, and then conducive to realizing its miniaturization requirements. Optionally, the pre-charging component and the reactor 340 can be fixed on the second bracket 610.

[0070] Furthermore, the capacitor assembly 330 is inserted into the second through hole 612, and the power terminal 323 is located on the side of the second bracket 610 away from the radiator 620. That is, the power terminal 323, the rectifier 321, the inverter 322 and a part of the capacitor assembly 330 are located on the same side of the second bracket 610, while the radiator 620 and another part of the capacitor assembly 330 are located on the other side of the second bracket 610. In this way, on the one hand, it is conducive to improving the convenience of connection between the above components, and on the other hand, the space on both sides of the second bracket 610 can be fully utilized to further improve the space utilization of the elevator control cabinet 10 and realize its miniaturization requirements.

[0071] In some embodiments, Figure 1 and Figure 2 As shown, the elevator control cabinet 10 also includes a housing 100, and a housing cavity 101 is formed inside the housing 100. The second bracket 610 is located in the housing cavity 101, and the capacitor assembly 330 and the power terminal 323 are connected to the housing 100. The housing 100 is the base of the elevator control cabinet 10, which is used to protect the internal electronic equipment from external environmental factors (such as dust, moisture, impact, etc.). The housing 100 can be made of a material with a certain strength, for example, it can be made of aluminum or aluminum alloy. A plurality of heat dissipation through holes can be set on the housing 100 so that the housing 100 has a certain air circulation ability.

[0072] In this embodiment, the capacitor assembly 330 and the power terminal 323 are fixedly connected to the housing 100 , which is beneficial to further improve the reliability and convenience of the fixed installation of the capacitor assembly 330 and the power terminal 323 in the housing 100 .

[0073] It is easy to understand that the capacitor assembly 330 and the power terminal 323 are connected to the housing 100, and other components can be indirectly or directly connected to the second bracket 610. As a result, the input copper bar group 350, the output copper bar group 360, and the connecting copper bar group 370 are also indirectly fixedly installed, which is also conducive to improving the reliability and stability of the copper bar structure connection.

[0074] In some embodiments, Figure 2As shown, the housing 100 includes a first side plate 110 and a third side plate 120 that are arranged opposite to each other, and a second side plate 130 that connects the first side plate 110 and the third side plate 120, the second side plate 130 is located on one side of the second bracket 610, the second bracket 610 is respectively connected to the first side plate 110 and the third side plate 120, a plurality of electrolytic capacitors 332 are fixedly connected to the second side plate 130, and both ends of the power terminal 323 are respectively connected to the first side plate 110 and the third side plate 120. Thus, the capacitor assembly 330 and the power terminal 323 are fixedly connected. Optionally, the electrolytic capacitor 332 can be directly fixedly connected to the inner wall of the second side plate 130 through the connecting bracket, and the power terminal 323 can be directly connected to the first side plate 110 and the third side plate 120 through the connecting bracket. Optionally, the first side plate 110, the second side plate 130 and the third side plate 120 can be an integrally formed structure.

[0075] In some embodiments, Figure 2 and Fig. 9 As shown, the elevator control cabinet 10 further includes a first bracket 200, a drive substrate 310, a control module 500 and a power module 400. The first bracket 200 is arranged in the accommodating cavity 101 and is located on the side of the power terminal 323 away from the second bracket 610, the drive substrate 310 is fixedly connected to the side of the first bracket 200 away from the second bracket 610, the inverter 322 is connected to the drive substrate 310 through a conductive wire harness, the control module 500 and the power module 400 are both electrically connected to the drive substrate 310, the control module 500 includes a control board 510, the power module 400 includes a power board 410, the control board 510 and the power board 410 are both fixedly connected to the first bracket 200, and the control board 510, the power board 410 and the drive substrate 310 are located on the same side of the first bracket 200.

[0076] The power module 400 can take power from the power terminal 323 and then convert it into power of various voltage levels to power the various components of the drive substrate 310 and the control module 500. The control module 500 takes power from the power module 400 through the wiring harness; the control board 510 in the control module 500 is the core of the control module 500, which drives the elevator traction machine to work by controlling the drive substrate 310, thereby realizing the control functions such as the elevator car rising, descending, stopping the door opening and its shock absorption. The control board 510 is usually provided with a control core board, and the control core board can be, for example, a microprocessor, a chip, etc. The drive substrate 310 can be provided with multiple circuit interfaces, control integrated circuits, drive integrated circuits, protection integrated circuits and other structures. The control integrated circuit receives the control signal from the control module 500 through the circuit interface, and then parses the drive signal according to the control signal, and transmits the drive signal to the drive integrated circuit. The drive integrated circuit transmits the drive signal to power components such as the contactor 325 and the inverter 322, so that the inverter 322 outputs a suitable current and voltage, thereby driving the motor of the elevator to operate.

[0077] In this embodiment, the first bracket 200 is arranged in the accommodating cavity 101, the driving substrate 310 is connected to the first bracket 200, and the power components such as the capacitor assembly 330, the inverter 322, the rectifier 321, the input copper bar group 350, the output copper bar group 360, the connecting copper bar group 370, the reactor 340, and the contactor 325 are all integrated and connected to the second bracket 610, so that multiple power components and the driving substrate 310 are separated in the accommodating cavity 101, and the two can be electrically connected by an external conductive wire harness, thereby forming an integrated driving board in the related art. In this way, the heat generated by the multiple power components will not affect the driving substrate 310, thereby reducing the probability of damage to the driving substrate 310, which is conducive to improving the life and performance of the elevator control cabinet 10. In addition, in this embodiment, the control board 510, the power board 410, and the drive substrate 310 are all arranged on the same side of the first bracket 200, which can realize a layered design of the board layer and multiple power components, which is beneficial to further reduce the impact of the heat of the power components on the circuit board, thereby further improving the life and performance of the elevator control cabinet 10.

[0078] In some embodiments, Figure 2 As shown, the elevator control cabinet 10 also includes a human-machine interaction module 700 arranged in the accommodating cavity 101, the human-machine interaction module 700 is electrically connected to the drive substrate 310, the control module 500 and the power module 400, the human-machine interaction module 700 is fixedly connected to the first bracket 200, and the human-machine interaction module 700 and the drive substrate 310 are located on the same side of the first bracket 200.

[0079] Specifically, the human-computer interaction module 700 includes an emergency stop button, a conversion switch, a button board, a display panel, etc. The human-computer interaction module 700 draws power from the power module 400 through a wiring harness. The emergency stop button in the human-computer interaction module 700 is connected to the elevator safety circuit through a wiring harness to realize the emergency shutdown of the elevator. The conversion switch in the human-computer interaction module 700 is connected to the elevator safety circuit through a wiring harness to realize the conversion of different working states of the elevator. The button board and display panel in the human-computer interaction module 700 are connected to the control board in the control module 500 through wiring to realize the execution and visual display of human-computer interaction instructions.

[0080] In this embodiment, the human-machine interaction module 700 is also fixedly connected to the first bracket 200 and is located on the same side of the first bracket 200 as the drive substrate 310. In this way, the human-machine interaction module 700 is located at the outermost side of the elevator control cabinet 10, thereby improving the convenience of personnel operation.

[0081] In some embodiments, the control module 500 further includes a UCMP board (not shown in the figure), which is arranged in the human-machine interaction module 700. The UCMP board refers to the elevator car accidental movement protection board (Unintended car movement protection system), and the UCMP board is connected to the elevator car through a wiring harness to realize functions such as early door opening and door lock short circuit detection. The UCMP board and the control board can be electrically connected by means of an external wiring harness. The UCMP board is arranged in the human-machine interaction module 700, so as to improve the convenience of maintenance and repair of the UCMP board.

[0082] Furthermore, if Figure 1 and Figure 2 As shown, the housing 100 further includes a fourth side panel 160 disposed opposite to the second side panel 130, and the fourth side panel 160 can be regarded as a front cover. The fourth side panel 160 is provided with an operation window 161 for the human-machine interaction module 700 to pass through. As a result, the operator can operate the human-machine interaction module 700 without opening the front fourth side panel 160, which is convenient for debugging and maintenance. Furthermore, part of the human-machine interaction module 700 can extend into the operation window 161 and be flush with the outer surface of the fourth side panel 160 to improve the structural regularity of the elevator control cabinet 10.

[0083] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0084] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0085] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0086] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0088] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An elevator control cabinet, characterized in that: include: Power terminal block; A capacitor component, arranged on one side of the power terminal along the first direction; A rectifier and an inverter are arranged on one side of the capacitor component along a second direction, wherein the first direction is perpendicular to the second direction; and An input copper bar group, an output copper bar group and a connecting copper bar group, wherein the power terminal is connected to the input end of the rectifier through the input copper bar group, the power terminal is connected to the output end of the inverter through the output copper bar group, and the capacitor component is connected to both the output end of the rectifier and the input end of the inverter through the connecting copper bar group.

2. The elevator control cabinet according to claim 1, characterized in that: The orthographic projection of the power terminal in the first direction is located within the orthographic projection of the capacitor component in the first direction.

3. The elevator control cabinet according to claim 1, characterized in that: The input copper bar group includes multiple input copper bars, and the output copper bar group includes multiple output copper bars. Parts of the multiple input copper bars are located on a first plane, and parts of the multiple output copper bars are located on a second plane. The first plane and the second plane are parallel and perpendicular to the first direction.

4. The elevator control cabinet according to claim 3, characterized in that: A distance between the first plane and the second plane is greater than or equal to 15 mm and less than or equal to 30 mm.

5. The elevator control cabinet according to claim 1, characterized in that: The capacitor assembly includes a laminated busbar and a plurality of electrolytic capacitors connected to the laminated busbar, wherein the laminated busbar is located between the electrolytic capacitor and the power terminal; The connecting copper bar group includes a first copper bar group and a second copper bar group. The laminated busbar is connected to the input end of the inverter through the first copper bar group, and the laminated busbar is connected to the output end of the rectifier through the second copper bar group.

6. The elevator control cabinet according to claim 5, characterized in that: Along the second direction, the inverter is located between the rectifier and the laminated busbar, the input end of the inverter is arranged close to the laminated busbar, and the first copper busbar group and the laminated busbar are an integrally formed structure.

7. The elevator control cabinet according to claim 5, characterized in that: The laminated busbar has a first capacitor positive electrode port and a capacitor negative electrode port, wherein the first capacitor positive electrode port and the capacitor negative electrode port are located on opposite sides of the laminated busbar along a third direction, and the third direction is perpendicular to the first direction and the second direction respectively; The second copper bar group includes a first copper bar and a second copper bar. The positive electrode port of the first capacitor is connected to the positive output terminal of the rectifier through the first copper bar, and the negative electrode port of the capacitor is connected to the negative output terminal of the rectifier through the second copper bar.

8. The elevator control cabinet according to claim 7, characterized in that: The elevator control cabinet further includes a pre-charging component and a reactor arranged along the second direction on a side of the rectifier and the inverter away from the power connection terminal; The first copper bar includes a first sub-copper bar, a second sub-copper bar and a third sub-copper bar. The first sub-copper bar is connected between the positive output end of the rectifier and the pre-charging component, the second sub-copper bar is connected between the pre-charging component and the reactor, and the third sub-copper bar is connected between the reactor and the positive port of the first capacitor.

9. The elevator control cabinet according to claim 7, characterized in that: The power connection terminal comprises a first DC connection port and a second DC connection port, and the laminated busbar further comprises a second capacitor positive electrode port; The connecting copper bar group also includes a third copper bar and a fourth copper bar, one end of the third copper bar is connected to the first DC wiring port, and the other end is connected to the second capacitor positive port, one end of the fourth copper bar is connected to the second DC wiring port, and the other end is connected to the second copper bar.

10. The elevator control cabinet according to claim 1, characterized in that: The elevator control cabinet also includes a second bracket and a radiator connected to the second bracket, the second bracket is provided with a first through hole and a second through hole, the radiator is arranged opposite to the first through hole, the rectifier and the inverter are connected to the radiator through the first through hole, the capacitor assembly is passed through the second through hole, and the power terminal is located on the side of the second bracket away from the radiator.

11. The elevator control cabinet according to claim 10, characterized in that: The elevator control cabinet further comprises a shell, a receiving cavity is formed inside the shell, the second bracket is located in the receiving cavity, and the capacitor assembly and the power terminal are connected to the shell.

12. The elevator control cabinet according to claim 11, characterized in that: The elevator control cabinet also includes: A first bracket, disposed in the accommodating cavity and located on a side of the power terminal away from the second bracket; a driving substrate, fixedly connected to a side of the first bracket facing away from the second bracket, the inverter being connected to the driving substrate via a conductive wire harness; and The control module and the power module are both electrically connected to the driving substrate. The control module includes a control board, and the power module includes a power board. The control board and the power board are both fixedly connected to the first bracket. The control board, the power board, and the driving substrate are located on the same side of the first bracket.

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